[dm-devel] Device Mapper as a cache for SAN?
Ed Wilts
ewilts at ewilts.org
Mon Apr 10 18:45:31 UTC 2006
On Mon, Apr 10, 2006 at 12:58:36PM -0500, Eric Van Hensbergen wrote:
> It seems like device-mapper would allow a fairly straightforward
> implementation of a local-disk cache for a SAN (iSCSI, AOE, etc.).
> The dm-raid1 and dm-mpath modules seem to have elements of overlap,
> but its not clear if there's a straightforward way to implement a
> local-disk block cache using existing modules, or whether a new one is
> needed. Has anyone looked at this before?
The obvious question is why? What would this provide that the kernel
and file systems don't already provide?
.../Ed
--
Ed Wilts, RHCE
Mounds View, MN, USA
mailto:ewilts at ewilts.org
Member #1, Red Hat Community Ambassador Program
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